I have just installed foobar2000 to play my new album (In a folder there are over 30 flac files, a cue file and other stuff) but it couldn't play the cue file.
However, it can play single or multiple flac files without any issues.

the main problem here is the name file+extention in the description inside the cue file. It has to match exactly the file name between the cue and the real file you have.I'm thinking, if those are flac files, substitute the .wav with .flac it should work. they have to match, remember that.
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TweakFixDec 2 '12 at 14:37